Dr. SJ Oh will present this paper. "Hippocampal ripples down-regulate synapses." Norimoto H1,2, Makino K1, Gao M1, Shikano Y1, Okamoto K1, Ishikawa T1, Sasaki T1, Hioki H3,4, Fujisawa S5, Ikegaya Y6,7. Published in Science